
+ applicable tax
Keep your genset running. This is the heavy-duty, epoxy-filled ignition coil used in Waukesha VHP and Jenbacher Type 3/4 natural gas engines — the workhorses of the power generation and gas compression industry. Replaces Waukesha 69694B and Jenbacher 347257. Built for 24/7 continuous duty. Military-spec 3-pin connector.
Your V12 or V16 gas engine runs 8,760 hours per year — non-stop. At those duty cycles, ignition coils are a wear item. When coils start to fail, you get misfires, detonation events, increased emissions, reduced power output, and eventually unplanned shutdowns. The OEM wants $350–$480 per coil, and your engine has 12 to 16 of them. A full set from the dealer costs $4,200–$7,680. That's an unacceptable maintenance cost on a part that's essentially a commodity.
This is the same specification, heavy-duty ignition coil — epoxy-filled for vibration resistance and thermal stability, with a military-spec 3-pin connector for reliable contact in harsh environments. Direct replacement for Waukesha 69694B and Jenbacher 347257. Same performance, same reliability, dramatically lower cost. At $265 per coil, a full set of 16 costs $4,240 instead of $7,680 — saving you over $3,400.
The 69694B / 347257 ignition coil fits the following gas engine platforms:
If your Waukesha or Jenbacher gas engine parts manual references 69694B or 347257, this is the correct ignition coil. These engines use one coil per cylinder — order 12 for V12/L6 engines or 16 for V16 engines.
For maximum engine performance and longevity, we recommend replacing all coils at the same time alongside spark plugs:
Is this the same coil the OEM sells for $400+?
Yes. This is the same specification ignition coil — same epoxy-filled construction, same military-spec 3-pin connector, same performance rating for 24/7 continuous duty. The OEMs source these coils from specialist ignition manufacturers and re-brand them at dramatic markups. We offer the same spec coil at a fraction of the price.
Should I replace all the coils at once?
Absolutely. On a V16 running 8,000+ hours per year, all 16 coils experience the same thermal cycling and electrical stress. Replacing one at a time leads to uneven firing, increased misfire rates on the aging coils, and repeat maintenance visits. Replace the full set at your scheduled maintenance interval and pair them with new spark plugs for best results.
Does this fit both Waukesha and Jenbacher engines?
Yes. Waukesha 69694B and Jenbacher 347257 are cross-referenced — they specify the same ignition coil. Both engine lines are now manufactured by INNIO Group and share common ignition components across the VHP and Type 3/4 platforms.
How often should I replace the ignition coils?
Typical replacement interval is 4,000–8,000 operating hours, depending on fuel quality (pipeline natural gas vs. biogas/landfill gas), engine load factor, and operating environment. Engines running on biogas or low-quality gas will degrade coils faster. Monitor your misfire rates — increasing misfires are the leading indicator that coils are approaching end of life.
Do you offer complete tune-up kits?
Yes. Contact us for pricing on complete tune-up kits that include ignition coils and spark plugs for your specific engine configuration (V12 or V16). Buying as a kit saves additional money and ensures you have everything for a single maintenance event.
Heavy-duty epoxy-filled ignition coil for Waukesha VHP and Jenbacher Type 3/4 gas engines. Replaces Waukesha 69694B and Jenbacher 347257. Military-spec 3-pin connector. Built for 24/7 continuous duty power generation and gas compression applications. Buy in sets of 12 or 16 for complete engine tune-ups.